A surprising brain difference may explain why some kids struggle with math

Stanford researchers have discovered that children who struggle persistently with math may have underlying differences in how their brains manage problem-solving strategies. Children with developmental dyscalculia were slower to switch strategies, less responsive to changes in difficulty, and less able to improve their approach over time. Distinct patterns of brain activity were linked to these difficulties and could even predict certain math-related abilities.

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Where are all the males? Ancient human fossils reveal a startling mystery

A remarkable discovery in a South African cave suggests that an extinct human relative may have created an all-female burial site more than 240,000 years ago. Scientists analyzed ancient proteins preserved in Homo naledi teeth and found no male-specific markers among at least 20 individuals, potentially solving a mystery that has puzzled researchers for over a decade.

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DNA on the Shroud of Turin reveals centuries of hidden secrets

The Shroud of Turin, one of history's most mysterious religious artifacts, is yielding surprising new clues through DNA analysis. Scientists have uncovered a complex mixture of biological traces that may reveal more about the cloth's past and the environments it encountered. The findings offer a fresh scientific perspective on a centuries-old mystery that continues to spark fascination and debate.

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Ancient Siberian tomb reveals surprising secrets of cannabis use 2,800 years ago

Scientists investigating a 2,800-year-old Siberian tomb discovered roughly 1,000 cannabis seeds and chemical evidence suggesting ancient Scythians used the plant for its intoxicating effects. The remarkable find, surrounded by evidence of elaborate burial rituals and animal sacrifices, offers the oldest directly dated archaeological evidence of psychoactive cannabis use.

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400,000-year-old teeth reveal a stunning twist in human evolution

A groundbreaking discovery is rewriting the story of human evolution, revealing that an ancient human species once thought to be an evolutionary dead end may have left genetic traces in people alive today. By extracting proteins from 400,000-year-old Homo erectus teeth discovered in China, scientists uncovered evidence suggesting that these early humans interbred with Denisovans, another mysterious ancient human group. That genetic connection may have eventually reached modern populations in the Philippines, Papua New Guinea, and other parts of Southeast Asia.

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Permanent daylight saving time has a dark side, scientists warn

A new study warns that permanent daylight saving time could force American children to make at least 2 billion additional school commutes in darkness, potentially increasing safety risks and disrupting their biological clocks. Researchers found that fatal crashes involving school-aged pedestrians were roughly twice as likely during dark mornings as after sunrise.

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30,000-year-old DNA reveals Ice Age Europeans were far more connected than we thought

Scientists have uncovered surprising DNA evidence that Europeans living more than 30,000 years ago were connected across vast distances, challenging the idea that ancient populations remained largely isolated. Genetic clues from human remains and cave sediments reveal prehistoric migration, long-lasting communities, and survival through the harshest conditions of the Ice Age.

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